Raul is 3 times as old as his sister Sara. The sum of their ages is 28.
How old are Raul and Sara?  
                                             
                                          
                                          
                                        
											 
											Answer:
Raul: 21 Sara:7
Step-by-step explanation:
28 is the total
7 x 3 = 21
21 + 7 = 28